[Testicular metastasis of prostatic adenocarcinoma: report of 2 cases].

Prostatic carcinoma metastasizing to the testis is an extremely rare occurrence. In this study, two new cases have been reported of unilateral testicular metastases from an adenocarcinoma of the prostate. Unlike primary tumors of the testis, this type of tumor develops later in life (between 50 and 60 years of age), and is in most instances unilateral. It is generally discovered accidentally during orchiectomy or autopsy. It is not always easy to establish a morphological diagnosis, as the macroscopic appearance of the tumor may be normal. However, microscopic investigation reveals the presence of neoplasms of the testis.